BB vs SB all-in
Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 60bb · SB opens 2bb, BB 3-bets to 4bb, SB goes all-in · Big blind to act
Heads-up · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 64.16bbYour cards?
4bb
59.84bb
Tap your two cards.
Big blind's range
666 of 1,326 combos get hereFold 85.2%Call 14.8%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the big blind (BB) when SB opens 2bb, BB 3-bets to 4bb, SB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 60bb?
SB opens 2bb, BB 3-bets to 4bb, SB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 60bb: the big blind (BB) folds 85.2% and calls 14.8%. Always call: QQ+, 99-TT, AQs+, AJo+. Mixed: 77-88, AJs, KJs+, ATo.
- Always fold
- 33-66, A9s, A2s-A7s, K6s-KTs, K4s, Q8s+, J7s+, J5s, T6s+, T2s, 95s+, 86s+, 75s+, 72s, 64s+, 52s+, 42s, 32s, A6o-A9o, K8o+, K6o, QTo+, Q8o, T9o, 98o, 65o
- Always call
- QQ+, 99-TT, AQs+, AJo+
- Mixed
- 77-88, AJs, KJs+, ATo
Settings: Heads-up · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 60bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 8.73). A jackpot fee on bigger pots is not in this solve, so lines that build big pots may be slightly too loose. Bet sizes are the solved ones; a size that is not here plays like the nearest one.
Fits exactly: no game we have checked.
Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).
Rake sources: the ante from 93 of our own CoinPoker hands at $0.25/$0.50 with a $0.08 ante, played 2026-09-30; the caps and the preflop rule from coinpoker.com/games/texas-holdem/, fetched 2026-10-31.